* {
    margin: 0;
    padding: 0;
}

.nav {
    display: flex;
    width: 100%;
    background-color: rgba(0, 0, 0, 0.3);
    position: fixed;
    z-index: 99;
}

.nav .nav-img {
    padding: 10px 30px;
    padding-left: 180px;
}

.nav .nav-img img {
    width: 200px;
    height: 40px;
}

.nav-word {
    display: flex;
}

.nav-word ul {
    list-style-type: none;
    overflow: hidden;
    padding-left: 20px;
}

.nav-word ul li {
    float: left;
}

.nav-word ul li a {
    display: block;
    color: aliceblue;
    text-align: center;
    padding: 18px 20px;
    text-decoration: none;
}

.nav-serch {
    position: relative;
}

.nav-serch img {
    width: 25px;
    height: 25px;
    border-radius: 30px;
    position: absolute;
    top: 20px;
    left: 5px;
    background-color: aliceblue;
}

/* 轮播图 */
.swiper {
    position: absolute;
    top: 0px;
    height: 440px;
}

.swiper img {
    width: 100%;
    height: 440px;
}

/* 部门概况 */
.overview {
    width: 100%;
    height: 1600px;
    background-color: #F0F9FD;
}

.over {
    width: 70%;
    margin: auto;
    display: flex;
    justify-content: space-between;
}

/* 导航栏 */
.over-nav {
    width: 20%;
}

.over-nav ul li {
    list-style: none;
    border: 1px solid #DFDFDF;
    position: relative;
}

.over-nav ul li a {
    text-decoration: none;
    color: #545454;
    line-height: 50px;
    padding-left: 10px;
    letter-spacing: 1px;
}

.over-nav ul li span {
    display: none;
    margin-right: 10px;
    position: absolute;
    right: 5px;
    top: 15px;
    color: #545454;
}

/* 鼠标经过 */
.over-nav ul li:hover {
    background-color: #F7F7F7;

    span {
        display: block;
    }
}

/* 右侧内容 */
.over-content {
    width: 79%;
    /* margin: auto; */
    margin-left: 18px;
    background-color: #FFFFFF;
    height: 1400px;
}

#item1 {
    background-color: #FFFFFF;
    width: 100%;
    height: 1000px;
}

/* 头部 */
.over-top {
    display: flex;
    padding-top: 20px;
    border: 1px solid #EBEBEB;
    box-sizing: border-box;
    position: relative;
    height: 60px;
}

.over-left {
    /* display: none; */
    color: #CE1C1C;
    font-size: 25px;
    border-bottom: 4px solid #CE1C1C;
    padding-left: 6px;
}

.over-right img {
    width: 10%;
    height: 17px;
}

.over-right {
    display: flex;
    width: 30%;
    font-size: 14px;
    position: absolute;
    top: 38px;
    right: 0px;
}

.over-right text {
    color: #4D4D4D;
}

/* 部门概况 */
.over-center {
    width: 100%;
    padding-top: 20px;
    padding-bottom: 200px;
    border: 1px solid #EBEBEB;
    margin-bottom: 100px;
}

.over-center h1 {
    text-align: center;
    margin: 5px 0 10px 0;
}

.over-text {
    padding: 0px 15px;
    font-size: 14px;
    color: #4D4D4D;
    line-height: 25px;
    letter-spacing: 2px;
}

.page {
    display: none;
}

/* item2 */

#item2 {
    background-color: #FFFFFF;
    width: 100%;
    height: 1000px;
    position: relative;
}
.over-center2 { 
    width: 100%;
    padding-top: 20px;
    padding-bottom: 200px;
    border: 1px solid #EBEBEB;
    margin-bottom: 100px;
    display: none;
}

.over-center2 ul {
    padding-left: 40px;
    margin-top: 40px;
}

.over-center2 ul li {
    border-bottom: 1px solid #DDDDDD;
}

.over-center2 ul .flex {
    display: flex;
}

.item2-right {
    width: 12%;
    margin-top: 12px;
    margin-left: 443px;
    position: relative;

    img {
        width: 17%;
        height: 15px;
        position: absolute;
        top: 5px;
    }

    text {
        font-size: 12px;
        color: #737373;
        margin-left: 20px;
    }
}

.over-center2 ul li a {
    text-decoration: none;
    color: #737373;
    line-height: 50px;
    letter-spacing: 1px;
}

/* 三个跳转 */
.btn-img {
    position: absolute;
    right: 10px;
    top: 75px;
}

.btn-img img {
    width: 25%;
    height: 20px;
}

/* 师资队伍2 */
.over-all {
    display: none;
}

.over-btn1 {
    margin-top: 60px;
    display: flex;
    flex-wrap: wrap;
}

.content-btn1 {
    width: 48%;
    border: 1px solid red;
    margin: auto;
    height: 320px;
    border: 1px solid #EDEDED;
}

.btn1 img {
    width: 100%;
    height: 200px;

}

.btn1 h3 {
    padding: 10px;
    padding-left: 15px;
    border-bottom: 1px solid #ECECEC;
    color: #3A3A3A;
}

.btn-bottom {
    float: right;
    width: 30%;
    height: 30px;
    position: relative;
}

.btn-bottom img {
    width: 16%;
    height: 15px;
    position: absolute;
    top: 18px;
    right: 120px;

}

.btn-bottom text {
    line-height: 50px;
    font-size: 14px;
    color: #CFCFCF;
}

.content-btn1 {
    margin-bottom: 20px;
    box-shadow: 1px 1px 1px #F6F6F6;
}

/* 鼠标经过 */
.over-center2 ul li:hover {
    a {
        color: #C90000;
    }

    text {
        color: #C90000;
    }
}

/* 师资队伍3 */
.over-content-3 {
    margin-left: 20px;
    display: none;
}
.overcon-1{
    display: none;
}
.overcon {
    margin-top: 40px;
    display: flex;
    position: relative;
}

.overcon1 {
    width: 45%;
}

.overcon1 img {
    width: 100%;
    height: 200px;
}

.overcon2 {
    width: 50%;
    padding: 17px;
    height: 100px;
    background-color: #FFFFFF;
    position: absolute;
    left: 350px;
    top: 30px;
    box-shadow: 1px 1px 1px #c1bfbf;
}

.overcon2 h3 {
    color: #787878;
}

.overcon3 {
    margin-top: 20px;
    position: relative;
}

.overcon3 img {
    width: 5%;
    height: 20px;
    position: absolute;
    left: 10px;
}

.overcon3 text {
    color: #BFBFBF;
    margin-left: 30px;
}

.btn-active {
    background-color: #C90000;
}

/* 查看更多 */
.much {
    color: #A4A4A4;
    text-align: center;
    padding: 30px 20px;
    margin-top: 80px;
}

.much img {
    width: 2%;
    height: 20px;
    margin-bottom: -5px;
}

/* 脚部 */
.footer {
    width: 100%;
    height: 238px;
    background-color: #A90E09;
}

.footer-content {
    width: 70%;
    margin: auto;
    display: flex;
    margin-top: 20px;
    padding-top: 70px;
}

.footer-left {
    width: 30%;
    height: 70px;
}

.footer-right1 {
    width: 100%;
    height: 100px;
    margin-left: 10px;
    margin-top: -20px;
}

.footer-content text {
    font-size: 14px;
    color: #FFFFFF;
    letter-spacing: 2px;
    margin: 0px 20px;
    margin-top: 20px;
}

.footer-text {
    color: #FFFFFF;
    text-align: center;
    margin-left: 20px;
    font-size: 13px;
    letter-spacing: 2px;
}

.footer-color {
    text-align: center;
    color: #B08988;
    background-color: rgba(0, 0, 0, 0.4);
    height: 35px;
    font-size: 13px;
    line-height: 35px;
    margin-top: 30px;
}

.checkbtn {
    position: absolute;
    /* float: right; */
    top: 10px;
    right: 40px;
    display: none;
}

.checkbtn img {
    width: 80%;
    height: 40px;
    float: right;
}

#check {
    display: none;
}

